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Which SEA LIFE is the biggest?

There is no single SEA LIFE. About fifty aquariums on four continents share the name, and which is biggest depends on whether you count water, floor space, species or animals.

A tall cylindrical reef tank in a bright atrium
Each SEA LIFE is a separate building with its own size.

Booking choice: The SEA LIFE London ticket, timed entry with free cancellation up to 24 hours before. Book this Compare the options below

The first Sea Life Centre opened in Oban, Scotland, in 1979. The chain now belongs to Merlin Entertainments, which in 2023 described 50 aquariums and six sanctuaries, including the Beluga Whale Sanctuary in Iceland run by the SEA LIFE TRUST, under its BREED, RESCUE, PROTECT programme. SEA LIFE Brighton, opened in 1872 as the Brighton Aquarium, is described as the oldest continuously operating aquarium in the world.

This guide gives a short profile of ten SEA LIFE aquariums sold on GetYourGuide, then a table to compare them.

The quick answer

It depends on the measure. Bangkok is described as the largest aquarium in Southeast Asia, at 10,000 square metres and 5 million litres; Minnesota holds 1.3 million US gallons with a 300-foot tunnel. Neither is among the world's largest aquariums, and no SEA LIFE is.

What is SEA LIFE?

A chain of aquariums owned by Merlin Entertainments, with about fifty sites. Each ticket is for one building.

Merlin's 2023 figures describe more than 20 million guests a year and over 180,000 creatures across the chain. In early 2025, trade press reported that Merlin was exploring the sale of several aquariums, with London, Birmingham and Manchester not for sale. SEA LIFE is not connected to SeaWorld; see SEA LIFE vs SeaWorld.

Sharks overhead in a glass ocean tunnel
Ocean tunnels are a recurring SEA LIFE feature.

Which SEA LIFE is the biggest?

By water volume and floor area, Bangkok and Minnesota stand out among the ten here. By species, London lists more than 500 and Melbourne more than 550.

Bangkok is given as 10,000 square metres and 5 million litres, and is described as the largest aquarium in Southeast Asia. Minnesota holds 1.3 million US gallons, which is in the same range. Arizona, by contrast, covers 26,000 square feet. None of these is among the world's largest aquariums, which is worth knowing before you plan a day around one.

Southeast Asia's largest aquarium, in the basement of Siam Paragon.

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What is SEA LIFE London like?

The flagship, in County Hall next to the London Eye, with 14 zones over 3 floors and the Shark Walk.

The London listing describes more than 500 species, 65 displays and 10 shark species under the glass Shark Walk, plus gentoo penguins in Polar Adventure. The operator estimates one and a half to two hours. Details in our SEA LIFE London tickets guide.

SEA LIFE London Entry Ticket

The SEA LIFE flagship on the South Bank: Shark Walk, gentoo penguins and 14 zones on a timed ticket.

SEA LIFE London Entry Ticket · 1.5 to 2 hours · free cancellation

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What are the SEA LIFE aquariums in Australia like?

Sydney is known for Pig the rescued dugong and the Penguin Expedition raft ride; Melbourne for its 2.2 million litre Oceanarium.

Sydney, at Darling Harbour, has nine zones and 13 shark species on the official count; Dugong Island is currently closed and Pig is in Day and Night on the Reef. Melbourne, on the Yarra, has 12 zones, king and gentoo penguins, a crocodile and a 4D cinema. Both are compared in SEA LIFE Sydney vs Melbourne.

Gentoo penguins on ice beside water
Gentoo penguins appear in London, Melbourne, Bangkok and Paris.

What are the SEA LIFE aquariums in the United States like?

Orlando has a 360-degree ocean tunnel at ICON Park, Arizona has rescued green sea turtles in Tempe, and Minnesota has a 300-foot tunnel at Mall of America.

  • Orlando: more than 5,000 creatures, a 360-degree ocean tunnel, a Jelly Wall and the Coastal Rockpool; one to two hours on the listing.
  • Arizona: 26,000 square feet at Arizona Mills, a 360-degree tunnel and a 161,000-gallon turtle display with the rescued turtles Ziva and Donna; LEGOLAND Discovery Center is next door.
  • Minnesota: opened in 1996 as UnderWater World; a 300-foot tunnel in four sections (Sturgeon Lake, Wild Amazon, Shark Cove and Rainbow Reef), more than 10,000 animals; about an hour on the listing.

Mall of America's aquarium: a 300-foot tunnel in four sections, with free parking at the mall.

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What is SEA LIFE Bangkok like?

A large basement aquarium under Siam Paragon, with 11 zones, a 270-degree tunnel, gentoo penguins, otters, a 4D cinema and a glass-bottom boat.

It opened in 2005 as Siam Ocean World and came under Merlin in 2011. The listing gives more than 400 species and 30,000 creatures, opening hours of 10:00 to 20:00 with last entry at 19:00, and feeds and talks between 11:30 and 16:30. The listing also states no re-entry and asks visitors to bring a passport or ID copy.

A diver feeding fish inside a large tank
Bangkok schedules feeds and talks through the middle of the day.

What are the SEA LIFE aquariums in Europe like?

Munich focuses on sharks, Paris Val d'Europe on king and gentoo penguins, and Benalmadena is a small Mediterranean aquarium on the Costa del Sol.

  • Munich (Olympiapark): more than 3,000 sea creatures, over 35 aquariums, an 8-metre ocean tunnel and more than 20 shark species, with a route from the Isar to a tropical ocean.
  • Paris Val d'Europe (Serris, next to Disneyland Paris): more than 2,250 creatures, described by the operator as the only king and gentoo penguins in the Paris region, and the Atlantis zone with sharks and turtles; the listing states no re-entry.
  • Benalmadena (Puerto Marina): a 180-degree tunnel, a green turtle, an Amazonia zone, otters and a bio-beach rockpool; visitors report about an hour.
A seahorse holding on to seagrass
Smaller European sites suit a shorter visit.

How do the ten SEA LIFE aquariums compare?

The table sets out where each is, its signature exhibit and how long to allow, using operator or listing figures where they exist.

Where no time is given by the operator or the listing, the table says so rather than guessing.

AquariumWhereSignature exhibitTime needed
LondonCounty Hall, South BankShark Walk, gentoo penguins90 minutes to 2 hours (operator)
SydneyDarling HarbourPig the dugong, Penguin Expedition90 minutes to 2 hours (operator)
MelbourneFlinders St and King St, Yarra River2.2 million litre Oceanarium90 minutes to 2 hours, up to 3 with talks (operator)
OrlandoICON Park, International Drive360-degree ocean tunnel, Jelly Wall1 to 2 hours (listing)
ArizonaArizona Mills, TempeGreen sea turtle displayNot stated
MinnesotaMall of America, Bloomington300-foot tunnel in four sectionsAbout an hour (listing)
BangkokSiam Paragon, Rama 1 Road270-degree tunnel, glass-bottom boatNot stated
MunichOlympiaparkOver 20 shark species, 8-metre tunnelNot stated
Paris Val d'EuropeSerris, next to Disneyland ParisKing and gentoo penguinsNot stated
BenalmadenaPuerto Marina, Costa del Sol180-degree tunnel, bio-beach rockpoolAbout an hour (visitor accounts)
SEA LIFE Bangkok Ocean World Entry Ticket

Bangkok's aquarium under Siam Paragon: a 270-degree tunnel, penguins and a glass-bottom boat, open until 20:00.

SEA LIFE Bangkok Ocean World Entry Ticket · Open until 20:00 · free cancellation

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Frequently asked questions

Which is the biggest SEA LIFE aquarium?

It depends on the measure. Bangkok is described as the largest aquarium in Southeast Asia, at 10,000 square metres and 5 million litres; Minnesota holds 1.3 million US gallons.

Where was the first SEA LIFE?

The first Sea Life Centre opened in Oban, Scotland, in 1979.

How many SEA LIFE aquariums are there?

Merlin's 2023 release describes 50 aquariums and six sanctuaries.

Which SEA LIFE is the oldest?

SEA LIFE Brighton, opened in 1872 as the Brighton Aquarium, is described as the oldest continuously operating aquarium in the world.

Ready to book

Choose your aquarium

Free cancellation up to 24 hours before on every option. Timed e-tickets on GetYourGuide.

SEA LIFE London Entry Ticket

SEA LIFE London Entry Ticket

County Hall, South Bank, London · 1.5 to 2 hours

  • Entry to SEA LIFE London Aquarium at your booked time slot
  • Mobile e-ticket: scan it at the timed-entry door
  • Infants under 2 free, but they still need a ticket; under-16s with an adult aged 18 or over
Validity1 day, timed entryper the listingBook this
SEA LIFE Bangkok Ocean World Entry Ticket

SEA LIFE Bangkok Ocean World Entry Ticket

Siam Paragon, Rama 1 Road, Bangkok · Open until 20:00

Southeast Asia's largest aquarium, in a mall basement

Validity1 dayper the listingBook this
SEA LIFE Minnesota Aquarium Entry Ticket

SEA LIFE Minnesota Aquarium Entry Ticket

Mall of America, Bloomington · About an hour

A 300-foot tunnel under the biggest mall in the United States

Validity1 dayper the listingBook this

Plan your time slot before you go

Timed entry to the County Hall flagship beside the London Eye: 14 zones, the Shark Walk and the gentoo penguins, with free cancellation up to 24 hours before.

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